Toner for developing electrostatic image and process for the pre

Details Toner for developing electrostatic image and process for the pre Toner for developing electrostatic image and process for the pre

1994-05-24

1995-10-24

Martin, Roland

Radiation imagery chemistry: process, composition, or product th

Electric or magnetic imagery, e.g., xerography,...

Post imaging process, finishing, or perfecting composition...

430137, G03G 9083

Patent

active

054609135

ABSTRACT:
Disclosed is a process for the preparation of a polymerization process toner for developing an electrostatic image which comprises the polymerization of a polymerizable monomer containing finely divided magnetic grains dispersed therein, a compound represented by formula R--(COOM).sub.n being used as a dispersant, wherein n represents an integer 1 to 4, R represents an alkyl group (including phenyl-substituted alkyl group), an alkylene group (including a phenyl-substituted alkylene group), or a substituted or unsubstituted phenyl group, and M represents a hydrogen atom, alkaline metal or alkaline earth metal. The process provides an enhancement of pigment dispersability in a toner, giving a toner that provides a high image quality.

REFERENCES:
patent: 4097620 (1978-06-01), Lu
patent: 4218530 (1980-08-01), Lu
patent: 4421660 (1983-12-01), Sole
patent: 4609607 (1986-09-01), Takagi et al.
patent: 5135832 (1992-08-01), Sacripante et al.

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